Cut-off mechanism for cigaretterod-forming machines



Sept. 4, 1934. w. F. GRUPE CUT-OFF MECHANISM FOR CIGARETTE ROD FORMING HACHINES Filed July 1, 1929 I 3 Sheets-Sheet 1 Sept. 4, 1934.

CUT-OFF MECHANISM FOR CIGARETTE ROD FORMING MACHINES W. F. GRUPE Filed July 1, 1929 3 Sheets-Sheet 2 1 I 4. E mfZQ,

Sept. 4, 1934. w PE 1,972,442

CUT-OFF MECHANISM FOR CIGARETTE ROD FORMING MACHINES Filed July 1, 1929 5 Sheets-Sheet s zvrox,

ATTORNEY,

Patented Sept. 4, 1934 Thlis invention: relatesrto improved. cut-off mechanism for ,cig'arette-rod-forming machines. A primary object of the invention .is to attain higher speed'of severingand thereby increase the output of the cigarette making machine as a whole. a In severing cigarette-rods or the like, it is necessaryfforth'e knife to movefnot only across the length of 'thecigarette-r'od or the like,'but"also longitudinally'withithatrod, because the rod is beingfcontinuoiusly fed'forwards, and if the knife did: not move longitudinally with it as it was passing across it, there would not be a clean cut. i In severing mechanism, as heretofore constructed; it has been found that, owing to the complicated nature of themechanismemployed for moving the knifazit' is impossible to. workthe severing mechanismasfast as the cigaretteerod or' the like oould'bej'niade and fed forwards. Conseguent1y,- themed-making mechanism has had to be slowed down to bring'it into accord with the relatively limitedv capabilities, of the severing mechanism. J v

According to the primary featureof the present inventionpthere' is provided a cigarette-rod or like severingrnecha'nism comprising aknife which iswanchoredtc turn withaY-carrier rotatable in the direction to carry the knife edge across the cigarette-rod or the like, ,and is controlled by means which oscillate it relatively to-the carrier,

inthe'dii'ection along the length of the cigaretterodjo'r the like. Thus, the 's'aidcarrier is not reciprocated orijoscillated, which means that the 7 parts which partake of this movement are rela-. "'35 tite'ly light; and, consequently, offer. but little inertia to reversals 01111011011. Hence, the aforesaidhigher-ispeed isobtainahle. .'The knife may: be anchored .to thecarrier in Y various Ways, but it-is preferred to hinge it, and '40 i'sfparticularly advantageous, not only because 1 1 56 it reduces the number of rotaryparts which requireto be balanced, butalsobecause ifapplied} toa' kriife which-is hinged at one end; and has it's ci i ttin edge the'othei end, fit enables-the reg qiiisit movement-entire cutting edge longitudinallyof"the'cigarette rod to" be obtained with.-

oneaconvenient way isto have the point of an-1 William F. Grupe, Lyndhurst, N. J., assignorto Ebco Machine Corporation, NewYork, N. Y., a corporation of New York ApplicationJuly 1, 1929, Serial No. 375,202 aciai s. (01. 131-37) only a fraction of that movement in the said reciprocatingmember. Further features and objects of the invention will be more fully understood from the following detail description ings, in which UNITED":S-TATES PATENT orrilce,

and the accompanying draw Fig. l is'a central vertical section of one em.- 7

bodiment of my invention;

i Fig. 2 is a sectional elevation on line 2--2 Fig. 1;

hand side of Fig. 3; Fig. 5 is aplan vie w of a knife blade:

Fig. 6 isa sectionalelevation on line 6-6 of Fig. 7 is a perspective view of a resilient clamp and adjustable locking member for the knife blade Fig. 8 is a sectional elevation on line of Fig. 3;

Fig. 9 is a diagra face grinding wheel knife blade; and

mmatic view showing a flat for grinding the taper of the Fig. 10 is a diagrammatic side elevation showing the general assembly of my cut-off mechanism on a rod-forming cigarette making machine.

. As above indicated the present invention is particularly directed to the cut-off mechanism applicable for red form machines. cigarette making ma cut-off mechanism,

ing types of cigarette making Since the detail construction of the chine proper, exclu'siveofthe may be of the regulation or any other approved constructions, these parts are not illustrated in detail in the. drawings. In Fig. 10 I have'shown in diagrammatic side elevation, the frame 1 of the cigarette machine proper, at 2 the regulation chute for receivingthe carded tobacco from the feeder proper of the machine.

The'web of cigarette paper is indicated at 3, supplied from the bobbin .4, and passed through-the printer 5, tov the guide plate 6 for deposition thereat ofthe shredded tobacco filler.

cated the endless tu At 7 is indibe belt for transmitting the cigarette paper and deposited tobacco through the folder 8; the paste .wheel of the rod-forming mechanism is indicated at 9.. The formed rod is indicated at 10. Y

My cut ofi mechanism is located at one end of the upper faceof the bed ll of the cigarette ma chine, at the usuallocationjof the regulation cut-j,

off mechanism,

A portion of the oi garette rod 10' is indicated' 'at &

ts entering the'bellmouth 12 of the ledger plate holder 13, the ledger platetube being indicated at 14. The discharge tube for discharging the severed individual cigarettes is indicated at 15, and is supported by the bracket 16 from the ledgenplate holder .13. As appears more. fully hereinater;;,the ledger plate' hol'der 11 3 and ledger plate tube 14am reciprocated along the path of travel of the cigarette rod a, therewith. simultaneously reciprocating the discharge tube 15 N As indicated above, the knife of my cut-oft mechanism proper is reciprocated vvhile tated;

by suitable mechanism at certaing iias Its rotation, and as appears morefully hereinaften the reciprocation of the khife' -is eifectecl simul taneously with a like reciproeationof the ledgrI plate holder during the stage of severing of the cigarette rod by the knife; edge -of;the-cut-oflr mach ne pmre s o n s a e shown adjustably positioned. at the te endof the shaft 22 bythe provisionj of a setscrew 26 of the shaft 22 servingas an for the hunzv, .1

" the}op pos itely disposed thrus 39;?"Ihe' adjustment indicated'a passin thmi ehiiitsjfhub12v, the fla d end. 22a outer l limiting' 'stop The recipbcation of thekniiejblade head; 17; is had'by any suitable means providing 'for-jcontrolled pivotal movement of the head 17., during ei heshe i -m t s As one formof reciprocating meansforthehead 17,1 havesh'ovvn the internal"cam'member 28, fixed to -the -standard.29 for reciprocating the nn r shait.f30'..whi h1 s qu r e; q ys na see Fig.8, the outer shaft 22 being hollow of like polygonal contour; to slidably receive and rotate the nne Shaft; -}The'j iit shaft z isn reciprocated, but is rotated" as above set forth, in

itsspacedbearings 31, 32, Whichfare of combined thrust andr'oller bearing type;

. T eeu 2 1 33 o t ef e i 30.1 w w ed-bv e' p n 1 an slot 35 connectiontotheknife head. 17;th'e. pin 34, may he ni he ermz'o j' ihg flniri s ci re i' y.

OQFrL n. .6- t u t e lQtie i On. he n r haf -3011s in he c e a 7jca r i i t eg r 8 ..d Dd f he cams ov 13a of the can-i member'ZS, serving also aislia housing. l jith "stat d. m Pa i endw h. tsx x e iont 2 d; t i ner; nd T he 11 aft 1 confining the required lubricating mediurn fas w l s to nroiecit f i and b h nnei nsists is s iste ioutwar dlvpbyi the expa sive coiled spring 40, spos'ed between 9. r e. he; w .ri xi n ien. 28 he jeei taii n e m te aa-sta e s g s men iw the, ct y iaee t-t amlg do.

is ample forthe proper severingflun in the phase of severing of the cigarette rod 11. As one form of such reciprocating means, I illus trate the closed cam 44, adjustably mounted onthe outer shaft 22, the reciprocation being had by the cam arm carrying at its one end the cam roller 46 received within the closed cam 44, v the opposite end ofthe secured, 1' to or forming apart of the'reciprocatingslide 47, mounted between the slide plates 48, 48, to whic1islide 47 the ledger plate carrier 13 is secured." The closed cam 441s adjustably positioned with respectto the shafit. 22 for the purpose of attainiiig ecisteisynchronisation and extent of recip-l rocation oi the ledger plate holder 13 (and there with o fitheledgerplat 14) and the reciprocation offtlie shaft 30 (in; turn reciprocating the knife bIa'de-he'ad- I'I- andknife blade 49) at the moment of severing the cigarette rod 10. The adjustment of the cam 44 controlling the ledger plate 14 also I affords 'adyustment to a limited extent for vary in ig rette eng hs in... com eetis a. w h su able e s -P es i tqs ie was; 2 as and arranges? isimsatvtt re a i. a d; s ected. Br nettes era-9r t si a nsag; 4: 1.. A 1 1.00 The bearing 31' is shown mounted o fiapiiiitqms. v bea gs 3 3 the r senseless 28., the s itl fi m see e b t itbe' i ie ali m. nd it s filed. t et 'av e sb r tially house wi hin ui ab e. Qe i etab f r a s ljee Oth r 1 92 new m n. mi est a nst; dust. and; t me sutsieesss. as oprecm e eak se of, ubr cat on. P ts ahlr he eams. 9 ,9; the. utters" mechan sm.' srroteet d; eiseerqiw lea ex:- iee uit ble enemas at the eme s te Qt e fipa edg q the kn eba 4i! definee e .rsere nsaend, e hestste t whettin upma uitam i nsiipe'ele .n't. qThe r t n uppo t n Pl te. 2. s erms needed w th h massive 5. weets-.- sidesof the blade head- 1'7; supplementiri in e pr l iraleilt supreme; hat 17 #1 t smit eter fstre n'. whi e-1m hese 9 reely sc llate bet rac is heimea' ilnes the "sever n ed e 2. fm. t a y a i ht ang es qt 'e. cis i tej d imma en q s tin eammat s) he kn fe. ed i ess ei zm'me these parts shown in Fig. 1, as will, he. app;

at dbi hqse kil ed, lthe tt sin e mi, mum 'd snleszem nt. enn'r xime u t r,. i n.j h. f r he. x e e ii 'le i' hes e'rine;e s?.01.

.I Pr v or he ady, j n h lem ti i. Uria knife'bladeas well, as for compensation ctr-the wea -sf the severing eggs. the form-clinch improvement, the rotatinghead '1'-7 is with-oppositely disposed grooved edges- 1 for sli'clably receiving thellmite bladeAQ; 5,. combined; with suitablerclamping and;

' able locking means,-such..as,the;.c1ampingtaIp,

ment154; of sresilientimaterial, havingthalakralm xtendinz p us po tions. 55: adapted: to. be;

= ceived within-immanen :slot ed i further: havingatheydownwgrdlg tagged;

. Us m L es ssaam t i .s st l -skies;

see Figs. 3 and 4, for holding the knife blade in set position against the tendency of displacement by the centrifugal force and the reaction forces incident to severing the cigarette rod.

Preferably, the cut-off mechanism is provided with suitable whetting or grinding means, i. e., sharpening means, operative automatically upon the rotation of the knife blade. Such sharpening element is referred to herein as a disc, irrespective of its sharpening and/or grinding and/or whetting function and the material and shape employed for the same. Such disc is preferably positioned relative to the path of the severing edge 52 of the knife blade 49 to effect the desired action without requiring movement of the disc in the direction of its axis, but preferably permitting rotation of the disc about its axis, effected either idly upon rotative engagement of the severing edge therewith or by positive drive if preferred.

As one form of mounting of such disc, see Fig. 9, disc 61 is universally mounted for all possible positions of the plane of its effective face and for vertical height and rotary adjustment about the vertical and the horizontal, and as shown comprises the bearing 62 rotatively receiving a suitable stud at one end of which the disc 61 is mounted concentrically with the axis of such stud, such stud being adjustably axially set by the screw-threaded stud 63 having the manipulating head 64, the screw-threading being received within suitable threading on the inner face of the bearing 62, the bearing 62 and its post 65 being pivotally mounted on the vertical, supporting post 66. The extent of pivotal adjustment of the bearing 62 controlled by the set screw 6'7, the threading of the shank of which meshes with the threaded, tapped opening 68 in the post 66. The post 66 is adjustable to vertical height by means of a suitable gear having the indicated manipulating head 69, the gear meshing with the circular rack gear teeth 70, and the rotative adjustment of the post 66 about the vertical being had by the worm 7 1, rotatively mounted in the supporting hollow post 72, the worm being adjusted by its indicated manipulating head '73.

The post 72 is mounted on any suitable support, v

such as on the bed ll of the cigarette machine proper, as also appears from Fig. 10.

The worm '71 meshes with vertically extending teeth on the post 66, the series of teeth extending annularly about the post 66, and of suificient vertical extension to provide for the required vertical movement of the post 66 in the vertical adjustment of the same by the adjusting head 69, as aforesaid.

From the above, it will be apparent that the speed of the severing means provided by my'invention is at all times, when properly initially set, in accurate synchronism with the rod-forming mechanism and other actuated parts of the cigarette making machine proper, and insures proper functioning of my cut-off mechanism at any desired increased speed at which the rodforming mechanism and associated parts of the cigarette making machine may be effectively operated. At all speeds of operation of my cut-off mechanism, the coacting parts, to wit, the rotating knife blade-and the ledger plate are reciprocated at the stage of severing in the direction and at substantially at the same rate of forward travel of the cigarette rod, the knife head and its supporting plate, as well as the ledger plate being reciprocated in the opposite direction during a non-severing stage.

It will be further apparent that but little inertia arises in the movement of the reciprocated parts, and of a magnitude which does not affect the proper co-relation of the actuated parts for the full range of speed at which the rod-forming mechanism and the associated parts of the cigarette machine proper can be effectively operated.

I claim.

1. A cut-off mechanism for a rod forming cigarette making machine, comprising a rotary knife blade support, fixed bearing means for said rotary knife blade support, a knife blade, hinged means for mounting said knife blade on said knife blade support, means for rotating said knife blade support in synchronism with the rod forming mechanism, cam means for displacing said knife blade relative to said knife blade support during the stage of severing, ledger plate means for receiving the cigarette rod formed by the rod forming mechanism, and means for displacing said ledger plate means in the direction of travel of the cigarette rod during the stage of severing.

2. A cut-off mechanism for a rod forming cigarette making machine, comprising a rotary knife blade su'pport, fixed bearing means for said rotary knife blade support, a knife blade, hinged means for mounting said knife blade on said knife blade support, means for rotating said knife blade support in synchronism with the rod forming mechanism, means for displacing said knife blade relative to said knife blade support during the stage of severing, ledger plate means for receiving the cigarette rod formed by the rod forming mechanism, and cam means for displacing said ledger plate means in the direction of travel of the cigarette rod during the stage of severing.

3. A cut-off mechanism for a rod forming cigarette making machine, comprising a rotary knife blade support, fixed bearing means for said rotary knife blade support, a knife blade, hinged means for mounting said knife blade on said knife blade support, means for rotating said knife blade support in synchronism with the rod forming mechanism, fixed cam means for displacing said knife blade relative to said knife blade support during the stage of severing, ledger plate means for receiving the cigarette rod formed by the rod forming mechanism, and means for displacing said ledger plate means in the direction of travel of the cigarette 'rod during the stage of severing.

WILLIAM F. GRUPE. 

